As for "RPG hybrids" dominating - I do not consider Mass Effect an RPG hybrid. Having FPS combat does not automatically make it a hybrid - was Might & Magic 6 ever considered a "RPG + FPS hybrid"?. It certainly has FPS combat, but beyond that it has nothing in common with action games. Combat, in my opinion, has absoluttely nothing to do with whether or not a game is considered a real RPG or not.

It is just plain out wrong to say M&M has FPS combat! It kind of has "realtime" combat, but it has no aiming or dodging or any such kind of thing to make it an FPS, in that case you could even call Wizardry 8 an FPS when you choose the phased-combat.